Intermec PX4i Double Serial Interface Kit Installation Instructions - Page 37

Maximum recommended baud rate is 9600 bps.

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Chapter 4 - Serial Interface "uart3:", "uart4:", and "uart5:" Connector Configuration (20 mA Current Loop on "uart3:", "uart4:", or "uart5:") DB-9 socket 1 Signal 2 +TXD 3 +RXD 4 - 5 GNDE 6 - 7 -RXD 8 -TXD 9 - Meaning External +5VDC max 500 mA (automatic switchoff at overload, short-circuit protected) provided a strap is fitted on J6 A which spoils the galvanic isolation +Transmit data +Receive data Ground -Receive data -Transmit data MTG 5 9 4 -TXD 8 -RXD 3 7 +RXD 2 6 +TXD 1 +5V DC if GND strap fitted MTG 20 mA Current Loop socket as seen from the outside. Note: Maximum recommended baud rate is 9600 bps. Double Serial Interface Kit Installation Instructions 33

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4
5
3
2
1
8
9
7
6
+TXD
+5V DC
if GND strap
fitted
+RXD
MTG
MTG
-RXD
-TXD
Double Serial Interface Kit Installation Instructions
33
Chapter 4 — Serial Interface "uart3:", "uart4:", and "uart5:"
Connector Configuration (20 mA Current Loop on "uart3:", "uart4:", or
"uart5:")
DB-9 socket
Signal
Meaning
1
External +5VDC max 500 mA (automatic switch-
off
at overload, short-circuit protected) provided
a strap is fitted on J6 A which spoils the galvanic
isolation
2
+TXD
+Transmit data
3
+RXD
+Receive data
4
–
5
GNDE
Ground
6
-
7
-RXD
-Receive data
8
-TXD
-Transmit data
9
–
20 mA Current Loop socket as seen from the outside.
Note:
Maximum recommended baud rate is 9600 bps.